Science & Technology
http://www.nasa.gov/ NASA
http://www.skypub.com/comets/comets.shtml Sky & Telescope: Hale-Bopp Comet
http://cirrus.sprl.umich.edu/wxnet/ Weather Net
http://www.enews.com/magazines/discover/ Discover Magazine
http://www.phys.unsw.edu.au/physoc/physics_faq/faq.html The "Physics FAQ"
http://www.mos.org Boston Museum of Science